SainSmart 12864 Pocketable Transistor Tester Capacitance ESR Diode Triode Triac MOS Meter LCR-T4 Black One-button operation, automatic shutdown Only 20nA shutdown current;Automatic test the pin of a component, and display on the LCD Automatic identification components pin arrangement Measuring bipolar transistor current amplification factor and base - emitter threshold voltage Measuring the gate MOS FET threshold voltage and the gate capacitance